*{
	margin: 0;
	padding: 0;
}

/* padding 1=5rpx*/
.p{
	padding: 20rpx;
}
.p_0{
	padding: 0rpx;
}
.p_1{
	padding: 5rpx;
}
.p_2{
	padding: 10rpx;
}
.p_3{
	padding: 15rpx;
}
.p_4{
	padding: 20rpx;
}
.pt_0{
	padding-top: 0rpx;
}
.pt_1{
	padding-top: 5rpx;
}
.pt_2{
	padding-top: 10rpx;
}
.pt_3{
	padding-top: 15rpx;
}
.pt_4{
	padding-top: 20rpx;
}
.pr_0{
	padding-right: 0rpx;
}
.pr_1{
	padding-right: 5rpx;
}
.pr_2{
	padding-right: 10rpx;
}
.pr_3{
	padding-right: 15rpx;
}
.pr_4{
	padding-right: 20rpx;
}
.pb_0{
	padding-bottom: 0rpx;
}
.pb_1{
	padding-bottom: 5rpx;
}
.pb_2{
	padding-bottom: 10rpx;
}
.pb_3{
	padding-bottom: 15rpx;
}
.pb_4{
	padding-bottom: 20rpx;
}
.pl_0{
	padding-left: 0rpx;
}
.pl_1{
	padding-left: 5rpx;
}
.pl_2{
	padding-left: 10rpx;
}
.pl_3{
	padding-left: 15rpx;
}
.pl_4{
	padding-left: 20rpx;
}

/* margin */
.m{
	margin: 20rpx;
}
.m_a{
	margin: auto;
}
.m_0{
	margin: 0rpx;
}
.m_1{
	margin: 5rpx;
}
.m_2{
	margin: 10rpx;
}
.m_3{
	margin: 15rpx;
}
.m_4{
	margin: 20rpx;
}
.mt_0{
	margin-top: 0rpx;
}
.mt_1{
	margin-top: 5rpx;
}
.mt_2{
	margin-top: 10rpx;
}
.mt_3{
	margin-top: 15rpx;
}
.mt_4{
	margin-top: 20rpx;
}
.mr_0{
	margin-right: 0rpx;
}
.mr_1{
	margin-right: 5rpx;
}
.mr_2{
	margin-right: 10rpx;
}
.mr_3{
	margin-right: 15rpx;
}
.mr_4{
	margin-right: 20rpx;
}
.mb_0{
	margin-bottom: 0rpx;
}
.mb_1{
	margin-bottom: 5rpx;
}
.mb_2{
	margin-bottom: 10rpx;
}
.mb_3{
	margin-bottom: 15rpx;
}
.mb_4{
	margin-bottom: 20rpx;
}
.ml_0{
	margin-left: 0rpx;
}
.ml_1{
	margin-left: 5rpx;
}
.ml_2{
	margin-left: 10rpx;
}
.ml_3{
	margin-left: 15rpx;
}
.ml_4{
	margin-left: 20rpx;
}

/* width */
.w100{
	width: 100%;
}

/* height */
.h100{
	height: 100%;
}

/* flex */
.flex-layout {
  display: flex;
}

.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-column {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.flex-row {
  display: flex;
  flex-direction: row;
  align-items: center;
}
